Apparatus for cleaning plate-glass polishing runners



Oct. 19 1926.

H. S. HEICHERT APPARATUS FOR CLEANING PLATE GLASS POLISHING RUNNERS Original Filed March 23, 1923 4 Sheets-Sheet 1 INVENTOR MM 69 W a WW *6. W

H. S. HEICHERT APPARATUS FOR CLEANING PLATE GLASS POLISHING RUNNERS Original Filed March 2 1923 4 Sheets-Sheet 2 wmu N UTu A $2M? WM .0 Wm on m, NW um mm Wm N o j Z i z T PM 1/0,, ID 101/ F I G -2:

Get. 19 1926. 1,603,949

0 H. S. HEICHERT APPARATUS FOR CLEANING PLATE GLASS POLISHING RUNNERS Original Filed March 23, 1925 4 Sheets-Sheet s IN VE/VTOR Get. 19 1926. 1,603,949

H. S. HEICHERT APPARATUS FOR CLEANING PLATE GLASS POLISHING RUNNERS ori in l Filed March 23, 192.3 4 Sheets-Sheet 4 /N I/ENTO'Q 39 mg frames or may be a plied to each maouter end of the lever is provided with the 85 Patented a. 19. 19 26. w I 1,603,949 UNITED STATES PATENT OFFICE.

HERMAN S. HEICHEBT, OI PITTSBURGH, PENNSYLVANIA, ASSIGNOB TO PITTSBURGH PLATE GLASS COMPANY, A CORPORATION OF PENNSYLVANIA.

APPARATUS FOR CLEANING PLATE-GLASS POLISHING BUNNERS.

Application filed larch 23, 1928, Serial No. 827,088. Renewed larch 31, 1926.

The invention relates to apparatus for Arranged in series above the tables are a polishing plate glass, and particularly to series of polishing machines, two of which that form of apparatus in which the glass are illustrated in Figs. 1 and 2. These to be polished is carried beneath a series of polishing machines comprise a supporting 5 polishers on cars or other carrier appaframework 4, made up of commercial secratus. After a certain period of use, the tions, as illustrated, and carrying rotating felts of the runners become caked with frames 5 upon which the polishingrunners rouge or other (polishin material and their are carried. The runners carry the polefiiciency is re need. he principal object lshing felts 7 upon their lower sides and R0 of the present invention is to provide a simare mounted in spindles 8 slidable vertically ple, convenient arrangement, for washing through the frames 5, so that the weight of the felts of the various machines at interthe runners is imposed upon the glass when vals without interfering with the continuthe supporting frames are lowered. The

, ous. operation of the apparatus and withframes 4 are rotated by means 'ofspindles 15 out interferin with the efiiciency ofthe 9 provided with the spur gears ,10 and polishing mac ine adjacent the one which driven from pinions 11. Each machine is being washed. preferably has its own operating motor 12 In its preferred form, the apparatus commounted upon the top of the framework prises a series of frames extending transand arranged to drive the spindle 9 through 20 versely of the tables or carriers and prothe belt 13 and gears 14 and 15, the latter vided at their lower ends with scrapers. or of which is keyed to the shaft 16 which carsqueegees, together with means ,for applylies the (pinion 11. The method of driving ing water to wash the machines. These the spin le 9 is immaterial in so .far as the scraper devices are preferably mounted for present invention is concerned.

25 swinging movement so that when not in Provision is made for raising and loweruse, they are moved to a osition out of mg the runner frames 5 by means of the contact with the glass and he d in such posilever 17 ivoted upon the bracket 18 and ention. The water for washing may be apgaging t e thrust bearing 19, the upper half plied from spray pipes carried by the swingof which is secured to the shaft 9. The

chine from a hose or ot er suitable supply. threade'l rod 20 which is moved up and means. It is preferred to use a scraper or down through the nut 21, carried upon the equivalent shieldin means between every bracket 22 by means of the wheel 23. pair of tables, but t is is not an essential as Along each side of the track 2 is a wall 24,

35 the scraper or shieldin means may be made upon which wall is mounted the shielding portable and moved om machine to ma or scraping devices for the glass and also chine, in which case the number of such the spray pipes. Extending transversely devices required is reduced to a minimum, between the various machines are a series although the convenience in use is not as of pipes 25 mounted at their ends in the 40 great as in the preferred apparatus. Cerbearings 26 mounted upon the to of the tain embodiments of the invention are ilwall 24. Extending downwardly rom the 1 lustrated in the accompanying drawings pipe 25 is a sheet metal plate 27- carryin at wherein its lower end the spray pipe 28. This p ate Figure 1 is a. horizontal section taken on also carries a transversely extending bar 5 the line II of Fig. '3. Fig. 2 is a side 29 which is slotted upon its lowerside elevation. Fig. 3 is an end elevation. Fig. and carries the rubber plates 30 for engag- 4 is an enlarged sectional detail view; Fig. ing the surface of the glass. The i e 25 5 is an enlarged sectional detail view showcarries at its end a valve casing 31 1g. 1) ing a modified form of shield or scraper. which communicates with the pipe 32 lead-- 0 And Fig. 6 is a detail section showing aning into the spray pipe 28. This casing is 0 other modification. provided with a valve operated from the Referring to the drawings,/1-1-1 are a andle 33 and provided with the inlet pipe series of tables mounted u n the track 2 34 which isconnected'to a source of water and carrying a series of s acts of lass 3 supply. The spra pipe 28 is provided placed end to end which are to be po ished. with a series of per orations directed down-.

wardl and laterally, as indicated in Fig. 4, whereby a supply of water is provided for the scraping devices are in inoperative position, the arms 35 being swun to the right until the weights rest upon the topof the wall. 24 or come in contact with suitable stops. This lifts the scrapers or squeegees out of contact with the lass and maintains them in inoperative posltion until they are again required for use.

In using the washing system, preferably the felts on only one machine are washed at a time, so that the main portion of the system remains in eflicient operation. The plates 27 in conjunction with the squeegees 30 effectually seal oif the machine being washed from adjacent machines so that the excess of water supplied during the washing operation, and which might otherwise run along the table and wet the adjacent tables to such an extent as to reduce their efliciency, is prevented from sgdoing. This is particularly desirable on the side of the machine toward which the glass is movingas the tendency' is for the excess water to carried in this direction, but there is also a considerable tendency of the water to move in the other direction and dilute the rouge mixture of the machine on such side, so that it is desirable to have the scraping devices in position on both sides of the machine This also permits the water to be ap-" plied much "more freely than would other wise be the case, so'that the washing operation may be concludedquickly and the time lost by the machine-incident to the washing operation is reduced to a minimum. 7

Whenit is not desirable to supply the water to the glass by means of the transverse.

pipes 28, the washing may also be effected in a somewhat simpler way in connection with the scraping device illustrated in Fig. 5. I In this construction, there is no transu I verse spray pipe and the water is supplied for washing purposes by means of a hose in the hands of an operator at the side of the machine. As here shown, the pipe 37, which acts as a shaft for the scraper device, is mounted at its end in notches cut in the an gle iron 38 mounted upon the top ofthe wall 24. This pipe carries a rubber curtain 39 which extends around the pipe at its upper end and at its lower end is secured to-a pair of transverse plates 40 which carry the scraper 41 between them. The parts39, 40

machine from passing to the next machine,

and 41 are secured together by means of the ing arms 43 which encircle the pipe 37 at their upper ends. The pipe 37 carries at one end, or at each end, an arm 46 provided with a counterweight 47 which parts perform the functions of the arms and weights 35 and 36 of the Fig. 4 construction. In one position the scrapers are held against the glass as indicated in the drawing and in the other position these members are held up out of contact with the glass.- This simplified form of scraper device may be employed between all the various polishing machines at the same time, as in the Fig. 1 construction, or the system may be operated with only two of these devices which are moved from one position to another in order to carry out the successive washing operations. The mounting of the pipes 37 in the notches of the angle irons 38 facilitates this method of shifting from one-position to another as it is a simple matter to lift the pipe with the parts carried thereby and remove it to a new location.

Fig. 6 illustrates a modification in which the brush 48 performs the function of the scrapers of the apparatus as heretofore described. This brush is carried by a box or guard 49 and may be moved up and down by suitable screw devices-50 to vary the pressure of the brush upon the glass. The casor guard 49 is supported at its ends upon the wall 24 and may be moved from place to f lace in the same manner as the device of ig. 5. The casing 49 in this construction also preferably carries the transverse spray pipe 51 to which water is supplied by any suitable means. The brush may be geared up: to a suitable motor, not shown, and driven at a speed which is best suited to meet requirements, the direction of rotation being such as to carry the water "back toward the water carried over collects inthe groove" 53 which leads laterally through the side of the casing to a suitable outlet.

What I claim is:

1. In combination in apparatus for polishing plate glass, a series of polishing machines, each having a rotatab e frame provided with a set of polishing runners, means for carrying the glass to be polished beneath the runners of the series of machines, means for a plyin water to the machines to -wash out e poli g material from the runno fixed supporting means along the line 0 travel 0 the means carryin the glass on each side thereof, and shiel s between the machines extending across the glass to prevent the water employed in washing one 'said shields being mounted upon said supthe runners of the series of machines, means for applying water to the machines to wash out the polishing material from the runners, and shields between the machines extending across the glass to prevent the water employed in washing one machine from passing to the next machine, said shields being mounted for swinging movement such that they may be moved out of contact with the glass when the washing operation is not in progress.

3. In combination in apparatus for polishingplate glass, a series of polishing machines, each having a rotatable frame provided with a set of polishing runners, means forcarrying the glass to be polished beneath the runners of the series of machines, means for applying water to the machines to wash out the polishing material from the runners, movable frames extending transversely between the various machines, scrapers carried thereby for engaging the glass, spray pipes also carried by the frames, and means for supplying water thereto.

4. In combination in apparatus for polishing plate lass, a series of polishing machines, eac having a rotatable frame provided with a set of polishing runners, means for carrying the glass to be polished beneath the runners of the series of machines, means for applying water to the machines to wash out the polishing material from the runners, a swinging frame extending transversely of the glass between the machines and provided with scrapers arranged in one position to yieldingly engage the glass and in another position to be out of contact therewith.

5. In combination in apparatus for polishing plate glass, a series of polishing machines, each having a rotatable frame provided with a set of polishing runners, means for carrying the glass to be polished beneath the runners of the series of machines, means for applyin water to the machines to wash out the po ishing material from the runners, swinging frames extending transversely of the glass between the machines and provided with scrapers, and counterweight means for the frames arranged when in one position to cause the scrapers to engage the glass, and when in another position to hold the scrapers out of contact with the glass.

In testimony whereof, I have hereunto subscribed my name this 16th day of March, 1923.

H. S. HEIGHERT. 

